St Albans · Hertfordshire
Lintel replacement in St Albans
If a window at your St Albans property has started to stick and the brickwork above has dipped, the lintel is a likely suspect. Send pictures of both sides of the opening, and we will tell you what we think is happening.
Guide price from£790per opening inc VAT
- Postcodes
- AL1, AL2
- Population
- about 85,000
- Area
- Hertfordshire
- Pricing region
- East of England
What is the ground like in Hertfordshire?
Postcode districts AL1, AL2 cover St Albans, a Hertfordshire town of about 85,000 people. If you are just outside St Albans, we also cover Harpenden (5 miles), Hatfield (5 miles) and Hemel Hempstead (5 miles).
Shrinkable clay is widespread in Hertfordshire. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Hertfordshire: Garden-city houses in Letchworth and Welwyn, 1930s semis, Victorian terraces and post-war new-town estates.
Repair options we may recommend
Inner and outer lintel replacement
Solid walls and some cavity walls carry separate lintels on the inside and outside faces. Where both have failed, each is replaced in turn, keeping the wall supported throughout. Internal plaster and reveals are then made good and redecorated where included.
Best for: Older solid walls with rotten timber across the inner face
Replacement with a cavity tray
A damp-proof membrane is laid over the new lintel with stop ends and weep holes, so water running down the cavity is directed out rather than into the house. Many older lintels were installed without one, which is often why they failed.
Best for: Cavity walls with damp above windows
What to expect when we carry out lintel replacement
Specify the replacement
We confirm the lintel type, length and bearing needed. For wide openings, bays or walls with unusual loads, an engineer may specify it, and where the repair needs an engineer’s design or sign-off we can arrange one.
Remove and replace
Brickwork is carefully taken out above the lintel, the old lintel removed and the new one bedded level on full bearings. A cavity tray goes in where relevant, then the brickwork above is relaid.
Remove supports and make good
Once the mortar has gained strength, props and needles come out and their holes are made good. Pointing, reveals and plaster are finished, and the window is refitted or checked for smooth operation.
Is it time for lintel replacement? Common signs
- Window or door frames that have started to bind or distort
- Soft, crumbly timber visible behind the brick face over a bay
- A diagonal crack climbing away from a window head
What should you budget for lintel replacement in St Albans?
For St Albans we use East of England rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £790 – £2,600 | per opening |
| Wide or bay openingest. | £2,100 – £4,700 | per opening |
| Making good inside and outest. | £160 – £630 | per opening |
Rules for lintel replacement in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Your lintel replacement questions
How much should I budget for lintel replacement in St Albans?
Guide prices for lintel replacement in St Albans start from about £790 per opening, including VAT, on East of England rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in St Albans?
We do. St Albans and the surrounding area are covered, including nearby Harpenden and Hatfield. A free initial assessment from your photos is the first step.
Why do houses in Hertfordshire crack?
South Hertfordshire around Watford, Borehamwood and Potters Bar is London Clay, while the north and west are chalk with clay-with-flints and the east has boulder clay. The clay areas are prone to seasonal subsidence near trees. Only an investigation can say why a particular building has moved.
Is it safe to live in the house during lintel replacement?
Yes, in almost all cases. The wall is fully supported before anything is removed, and the work is confined to one opening at a time. The affected room is sheeted against dust and kept clear while props are in place.
Can a lintel be replaced without removing the window?
Often yes. With the wall propped or needled, the old lintel can usually be cut out above the frame. If the frame has been carrying load or the lintel sits tight on it, the window may need removing and refitting, which we include in the quote.
Related work in St Albans
- Subsidence repairs
- Wall tie replacement
- Gable end wall repairs
- Subsidence insurance claim repairs
- Retaining wall repairs
Lintel replacement near St Albans
Our quote tool shows guide prices for a St Albans lintel replacement; add photos and we can confirm the likely opening size and type.